Field Wiring Guidelines
Original instructions
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Overview
Inputs are field wired to row 1 of the base. This section contains wiring guidelines and precautions.
Terminal Connector
To connect field devices to the I/O base, you need a field wiring terminal connector. Schneider Electric sells terminal connectors in sets of three.
Type
Part Number
Screw-in
170 XTS 001 00
Spring-clip
170 XTS 002 00
Busbar May Be Required
If you are using 4-wire devices, you will need a 1-row busbar to connect them to protective earth (PE).
Type
Part Number
Screw-in
170 XTS 006 01
Spring-clip
170 XTS 007 01
Mapping Terminal Blocks
CAUTION
POTENTIAL FOR SHORT CIRCUITS AND/OR POWER-UP SPIKES
Provide external fuses on the operating voltage to protect the module. Appropriate fuse values are shown in the wiring illustration. An unprotected module may be subject to short circuits and/or power-up spikes.
Failure to follow these instructions can result in injury or equipment damage.
A busbar may be attached to this I/O base to provide a fourth row for protective earth (PE).
Row
Terminal
Function
1
1...16
Inputs
17
Return (M-)
18
+ 24 VDC Operating voltage (L+)
2
1 ... 17
Sensor/input device voltages
18
+ 24 VDC for inputs
3
1 ... 17
Returns for sensor/input devices (for 3-and 4-wire devices)
18
Return for inputs
4
1 ... 18
Protective earth (PE)